81 Fascinating Details How To Measure A Tubular Door Latch

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There is a connection between the Measuring for a Door Latch and How to Measure Internal Door Latch information. additional searching needs to be done for how to measure a tubular door latch, which will also be related to how to measure a tubular mortice latch.

81 Interesting Facts How To Measure A Tubular Door Latch | How To Measure A Tubular Latch

• When measuring the dimension of your existing lock, 3 things are very important, and they are Functional Length, Cam Length and Mounting Hole. As the drawing shows, the Functional Length is Dimension A; the Cam Length, measured the cam from the center of the mounting hole to the end of the cam. If the cam needs to have an offset back or front to securely fasten the door, measure the offset like Dimension C. Last, the Mounting Hole should be measured like the picture shows. - Source: Internet
• If you are simply replacing a broken door latch with a new one then it’s best to replace on a like-for-like basis e.g. replace the old one with a new one of the same size. In the majority of cases you will probably have a 63mm door latch. - Source: Internet
• So, there you have it. You should now have everything you need to know about tubular latches and the considerations that need to be made. We’ve covered every important aspect you’ll need to think about when picking and installing a tubular latch, from latch sizes to positioning to the door handle choices made. - Source: Internet
• Moving back to the door, measure down from the top of the recess the above measurement and mark this position. Next, measure the width of the door and then adjust the mark so that it is at the correct distance from the top of the recess but also dead centre. This is where you latch case hole is going to be drilled. - Source: Internet
• The spindle also benefits from having a much stronger spring. This helps to make sure that handles and knobs are always returned to the centre and are not left drooping if the handle spring is a little weak. Dual spring or double sprung door latch - Source: Internet
• – Backset: the distance from the edge of the door to the center of the lock bore. Standard backsets are 2-3/8” and 2-3/4”. Other options include 2” and 5”. When replacing locks, the latch backset needs to match the holes bored in the door. - Source: Internet
• These usually require the use of unique keys to operate the lock. And so, they do not particularly have a universal key that works on all barrel locks. Instead, tubular locks have universal keys designed for each lock type or model. - Source: Internet
• Once done, put the keep back on the frame to test fit. If all is well and good, use the chisel to tidy up the recess, making sure you have a nice flat base. Test fitting the keep on the door frame - Source: Internet
• The larger sizes of latch are usually used for Door Knob furniture. We would usually recommend using the 102mm (4”) Tubular Latch or larger for a door knob, but the 76mm (3”) can be used as an absolute minimum. It is best to try and set the door knob further away from the door frame, as when a door knob is fitted too close to the door frame, (such as on a 64mm, or sometimes a 76mm latch) your fingers will become trapped between the Knob and frame each time you open the door, which is very inconvenient and often painful! For this reason, door knobs are often fitted into the mid-rail on panelled doors, so that a longer latch can be fitted, which will also look more traditional. - Source: Internet
• With the catch touching the frame, put a pencil mark above and below it on the frame. This is to identify the exact point on the frame that the keep needs to go. Door pushed closed so that latch position can be marked on door frame - Source: Internet
• As such, the minimum size of latch we’d recommend for use with a doorknob is 102 mm (4 inches). This will provide an 82 mm backset, leaving sufficient room for bashed fingers to be avoided. It also typically results in better aesthetics being offered overall. - Source: Internet
• This size door latch size is commonly used for lever handles on backplates where the width of the backplate is 50-55mm. This is the preferred latch for use with levers on roses or door knobs, where the rose is generally 50mm in diameter. Less common sizes of tubular latches are 100mm, 125mm and 150mm in case depth. These are used exclusively for knob sets and the choice of size is purely dependent upon the aesthetic appearance required on the door. - Source: Internet
• Deadbolt door locks are the most secure type of key lock and are usually used on a home’s exterior door. Available in single- and double-cylinder styles, deadbolts are rated according to their strength from Grade 1 to Grade 3. A Grade 1 is the highest grade and provides the most security. - Source: Internet
• The backset you choose is where your door knobs will sit on the door (where the spindle goes through). You may want your door knobs to sit centrally to the door stile, or if you have chosen door handles you may want to offset them slightly to take the lever into consideration. The backset measurement is also important so you can ensure that when you turn a door knob you do not hit your knuckles on the architrave. When deciding on replacement door knobs, check the backset measurement on your existing latch and the diameter of the door knob to ensure there is enough room for your hand to turn the door knob. - Source: Internet
• To prevent hands and fingers catching on the side of the door frame, it is best to fit a door knob further from the edge of the door than a door handle. The recommended case size for fitting with door knobs is 4 inches, but 3 inches can be used as an absolute minimum. Most door knobs are unsprung therefore a heavy duty, double sprung tubular latch is essential. - Source: Internet
• Now on to the door furniture. Door handles are by far the easiest to fix or replace, but again a lot of door handles these days are supplied with bolt through fixings that require a latch that will take bolt through fixings. Not all latches have this option, so be careful when choosing. - Source: Internet
• Mortice door latches and locks come in different sizes and working out the right one for your door can be tricky. The most common sizes in the UK for internal doors are 63mm and 76mm. This is the overall length measurement of the latch, often referred to as the case. This size will be determined by the size of your door and where you would like the latch to be inserted. You may have a panel/stile or detailing that will restrict the size you can go for. - Source: Internet
• The difference in sizes available refers to the length from the face plate to the centre of the square spindle hole, and governs how far into/across the door, that the handle or knob will be fitted from the doors leading edge. When fitting a mortice latch in paneled doors, choose the one that puts the handle closest to the middle of the door jamb otherwise it can look odd when fitted off centre. For flat ply flush doors it doesn’t matter what length latch you use. - Source: Internet
• Most Tubular Latches, with the exception of the Economy range, are supplied with Bolt-Through Fixing Holes. These are the holes in the latch case located on either side of the Follower. These Fixing Holes are designed to allow the fixing bolts, which are often supplied with door handles, to pass through the door and the latch mechanism so that the handles can be bolted together. The hole at the rear of the Latch is just a cutaway to the rear of the case. - Source: Internet
• Heavy and Double Sprung Tubular LatchesThere are several levels of quality available in a Tubular Latch, ranging from economy to high-end architectural quality. The economy and standard Tubular Latches are suitable for light use only and are commonly used by housebuilders and tradesmen. They will work with most standard sprung lever handles, however after some amount of use, they may begin to squeak and scratch, and may ultimately fail. We do not recommend the Economy or Standard Tubular Latches are used with door knobs. - Source: Internet
• Actually, no. Often people get mistaken between these two measurements when installing door latches, thinking they’re interchangeable. They’re not. - Source: Internet
• As with the latch, measure the sides of the spindle (should be around 7-8mm) and then select a drill bit that’s a few mm bigger e.g. if spindle is 8mm per side, select a 13mm flat drill bit. - Source: Internet
• The standard sized bore hole is 2 1/8″ in diameter. Through the edge of the door there is a 1″ cross bore that extends from the edge of the door through the bore hole. This cross bore is where the latch is installed. - Source: Internet
• The Tubular Latch is a very commonly used item and is a cornerstone of modern ironmongery. Available in many shapes, sizes, and variations to provide a variety of door latch sizes to suit your doors. Typically, it is manufactured with a mild steel latch-body with a short faceplate, a brass or steel tongue, and an 8mm follower. (The follower is the square hole where the spindle joining the door handles passes through the latch.) - Source: Internet
• Firstly, you need to know the measurements. This includes the backset size and the overall case size. The backset is the distance from the edge of the door to the centre of the door handle or door knob spindle hole. There are two common backset sizes that fitters use for residential properties, these are 57mm and 45mm. - Source: Internet
• – Lock bore: refers to the diameter of the hole on the door for installing the lock body. The standard bore for most of the current locks is 2-1/8”. If you want to replace it with locks has smaller diameter holes, re-drill the door or look for custom lock cylinder manufacturer to make suitable locks. - Source: Internet
• There is a wide choice of finishes available for the forend and strikeplates meaning that the latches can be coordinated perfectly with your door handles and hinges. The cheaper economy latches are usually either Nickel Plated or Electro Brass Plated. The better quality latches have a range of finishes in Polished Brass, Polished Steel, Satin Steel, Florentine Bronze, Power Coat Black. - Source: Internet
• Although they can come in different sizes the two most common sizes in the UK for internal door latches are 63mm and 76mm. These sizes are the overall length of the latch, or the case. When measured to the spindle mechanism, the backset, then they translate as 44mm for the 65mm case and 57mm for the 76mm case. - Source: Internet
• These sizes are the overall length of the latch, or the case. When measured to the spindle mechanism, the backset, then they translate as 44mm for the 65mm case and 57mm for the 76mm case. Whether you have lever on rose door handles or lever on backplate, your interior door handles can house any latch. - Source: Internet
• NOTE- Remember to ensure that the hole drilled for the latch is large enough to allow space for the latch mechanism to operate correctly. If the hole is too narrow and the Latch only just fits inside, then the case body can be compressed and particularly the spring mechanism, which means over time the spring will fail and the latch will stop working. Make sure that the hole allows a couple of mm spare around the latch case. - Source: Internet
• Here in the UK we have for many years had a standard size of 8mm for the square operating spindle in latches. Almost without exception, all lever handle sets sold today use or have a square spindle this size. Many years ago, before the introduction of decimalisation, the standard UK spindle was 5/16" or 7.9mm. Not many of these latches are still in existence today and those that are will generally be in large horizontal 125mm and 150mm lock cases. - Source: Internet
• If you are going to use door knobs instead of handles then the 76mm door latch is pretty much the minimum you should use (ideally you should go for the 102mm). This is to ensure that the knob sits back far enough on the door to avoid anyone catching their knuckles on the door frame when they turn the knob. Door knob fitted using 76mm latch to ensure knob located further in from the edge of the door - Source: Internet
• It’s important to note that a mortise latch and a tubular latch require two, very different door preparations. Tubular latches require 2 1/8” diameter cross-bores in the door, and 1” edge-bores. Mortise locks require a deep, rectangular pocket in the door. - Source: Internet
• The most common size has a casing that is 64mm in depth and the distance to the middle of the square operating spindle is 44mm. This size of the latch is used for most lever handles on back plates, where the width of the backplate is about 40-45mm. The next common size of the latch has a casing that is 76mm in depth and the distance to the middle of the square operating spindle is 57mm. - Source: Internet
• Find and mark the center of the doors edge. You can guess this at first by setting a gauge as close as you can guess then push the pin into the door working from both sides. You know the exact centre of the door is exactly between the two pin holes. - Source: Internet
• The materials used in construction of this latch are cheap e.g. cheap low grade steel and in some cases (manufacturer-dependent) feature plastic components such as a plastic keep. - Source: Internet
• Let’s start with the doors first. If you are fitting new doors, choosing a latch is a lot simpler, as it doesn’t matter how big the latch needs to be, due to not replacing an older version. Simply it’s all for decorative purposes on new doors. The longer the latch the further the door handles will be across the door (when viewing door from the front). - Source: Internet
• Lock Spacing The distance between two locks. When boring deadbolt locks in a door, there are two standards for spacing between the bottom lock and the deadbolt. The two most common are 5-1/2” and 6” from the centers of the two holes. There are other combinations of spacing which are used on specialty locks, however. When adding a deadbolt lock, your best choice would be one of standard measurement. - Source: Internet
• Pop the spindle/door bar through the spindle holes so that it is roughly centrally aligned and then push a handle over it. Make sure that you select the right handle as each one is specific to each side of the door e.g. when pushed downwards it should pull the latch in. - Source: Internet
• The more likely scenario however is that you don’t have a tubular latch to hand but need to know what size of latch you require to replace your old one. To determine this, you can find out the backset of the current tubular latch in your door by measuring from the edge of the door to the centre of the door’s stile. When shopping for a tubular latch, you should purchase one with a backset that matches your measurement the closest. - Source: Internet
• If you kept on drilling from the opposing side, when the flat part of the drill bit breaks through, in most cases this will cause break out or burst out e.g. the edges of the hole burst outwards and this can cause a fair amount of damage! Door handle spindle drilled through door - Source: Internet
• Tubular latches became popular in the early 1950’s. And, as their name implies, the latch mechanism itself is tubular in shape. These latches were initially designed for residential use, but manufacturers later modified the design for commercial use (frequently referring to them as “cylindrical locks”). The vast majority of homes built in the last 60 years have tubular latches. - Source: Internet
• Round Corner – The corners of the faceplate are rounded (1/4″ radius latch). Square Corner – The corners of the faceplate are square. Drive-In – The latch is designed to be used without a faceplate. - Source: Internet
• An easy way to choose which latch you need is to measure from the edge of your door to the centre of your door Stile. Choose the Backset which is closest to this measurement, and the handle will be as central as possible to the Stile on your door. We generally recommend that a 76mm Overall Latch Size is ordinarily the best size for most lever handles. However the shorter 64mm Overall Size should be used where the door is glazed, to minimize the risk of hitting the glass rebate when drilling to fit the latch. - Source: Internet
• PRO TIP: Put a clamp on the door as well, especially if it is a thin or hollow core door. This will help ensure the door doesn’t split whilst drilling. Use a slow speed and the side handle of the drill if it has one. To prevent drilling out the side of the door, stop every now and then to check you are drilling the hole straight and level - Source: Internet
• We offer both 67mm and 79.5mm overall length tubular latches which feature backsets of 45mm and 57.5mm respectively. - Source: Internet
• Bang the 25mm chisel into the door just inside the top pencil line and with the flat edge of the chisel facing up. Turn the chisel upside down and repeat at the bottom - again, keeping just inside the lines. Now using the same technique for chopping out the hinge, remove the timber inside being careful to cut only as deep as the face-plate is thick. - Source: Internet
• As a rule, use one hinge per every 30 inches of door: Doors up to 60 inches need two hinges. Doors over 60 inches, but not over 90 inches, need three hinges. Doors over 90 inches, but not over 120 inches, need four hinges. - Source: Internet
• This latch comes as standard with a quality, removable Forend which acts as a guide for the Latch Tongue to improve the action. Also supplied is a Strike Plate with a black plastic Dust Box to neaten the appearance and conceal unsightly chisel marks into the door frame. The Strike Plate has a small adjustable plate that ensures that the Latch Tongue is held securely. These are only little details, but make all the difference! - Source: Internet
• The backset measurement is also an important thing to consider when choosing latches and door knobs/handles. The backset is the distance from the edge of the door to the spindle mechanism on the latch. Usually a 63mm case measurement will have a 44mm backset and a 76mm case measurement will have a 65mm backset. - Source: Internet
• When buying a tubular mortice latch for your door handle it is important you know the correct size. Door handle latch sizes are usually advertised with their overall length, i.e the case. To measure the overall length of the latch case see diagram below. - Source: Internet
• Nostalgic Warehouse is one of very few door hardware companies that continues to sell new mortise locks. Although there is no standard length, size, or backset for these locks, most mortise locks have a 5 to 6-inch pocket in the door. Nostalgic’s “universal” mortise locks will fit most interior doors with legacy mortise locks, with little or no modification. - Source: Internet
• To select the correct sized bit, measure the width and height of the latch casing (should be roughly square and around 20-25mm per side) and select a bit that’s slightly larger e.g. if the casing measures 25mm x 25mm use a 28-30mm bit. - Source: Internet
• So please, be careful when choosing latch sizes when choosing door furniture, whether for new or existing doors. If you require any help please let us know. Associated latches are always linked to the lever door furniture on the sight taking away trawling through the list of latches on our site trying to find the right one. - Source: Internet
• Less common are tubular latches which are 100mm, 125mm and 150mm in case depth. Used exclusively for knob sets, the choice of size is purely dependent upon the aesthetic appearance required on the door. It is important to remember that you need a certain amount of clearance to avoid brushing your knuckles on the door frame. - Source: Internet
• There are also backset measurements which is the distance from the faceplate of the latch to the centre of the follower. This will determine where the door handle or doorknob sits on the face of the door. Backset industry standard sizes are typically 45mm, 56 mm, 82mm, 107mm and 130mm. - Source: Internet
• Simply put, the top hole in a double bore hole door is for your deadbolt and the bottom is for your knob or lever. This is where smart locks come into play. When it comes to choosing your deadbolt, you’ll need to decide between mechanical, electronic or smart. - Source: Internet
• Lever Handles: These are usually fitted with a 2 or 2.5 inch tubular latch. Most lever handles are sprung, therefore a standard tubular latch is adequate to give a positive return to the handle. - Source: Internet
• Yes, they are simple to install, due largely to their basic design. Often, all that’s needed to fit them is just one spindle hole drilled. This results in the installer being able to avoid the complex jig or chisel work that tricker types of mortice latches call for. - Source: Internet
• Home / Products / Function – Product Listing. The Keyed One Side function is a Single Cylinder deadbolt. It has a keyed cylinder on the outside and a thumb turn to lock and unlock the door on the inside. - Source: Internet
• The complication between handles and knobs comes down to the projection (how far the furniture will project when fitted to the proposed fitted surface) and the rose dimensions (the fixing plate of the handles and knobs). Handles tend to have smaller projections and roses, allowing for an easier installation. Knobs will tend to project further and sit on a larger fixing plate rose. This means that the knobs will require a larger/longer latch to accommodate the larger dimensions. What happens with knobs fitted with a small latch is that the rose might overhang on the lip of the door, and you’ll end up catching your hand on the frame of the door when opening. - Source: Internet
• The backset is the distance from the edge of the door to the spindle mechanism on the latch. Usually for a 63mm case measurement it will have a 44mm backset and for a 76mm case measurement will have a 65mm backset. The backset you choose is where your door knobs will sit on the door (where the spindle goes through). - Source: Internet
• Cam Latch. Cam latches are a simple, cost effective latch type that engineers can utilize in their application. … - Source: Internet
• In most cases, doorknobs have a minimum lifespan of around seven to ten years. Such a lifespan will likely happen to doorknobs that are not correctly installed but of the wrong grade. The best way to prolong your doorknob would be to check it regularly, at least once in a few years. - Source: Internet
• Carefully remove the timber inside the lines, using the same technique as for the door latch. Push the keep on and mark a pencil line all the way round the hole inside for the latch. Remove the keep and drill a 16mm hole about 10mm deep. Use the 10mm chisel to square the hole up, cutting at the top and bottom first. Fit the keep back on and screw to the lining. - Source: Internet
• The next size of latch has a casing which is 75mm in depth and the distance to the middle of the square operating spindle is 57mm. A door latch this size is commonly used for levers on back plates where the width of the backplate is 50 to 55mm. This is the preferred latch for use with levers on roses, where the rose is generally 50mm in diameter. On some occasions you would use this size of latch for door knobs, but generally only ones up to 50mm in diameter. - Source: Internet
• You may find that it’s either very tight or won’t go into the hole at all. If so, you will need to use a small chisel to chisel out the sides of the hole to square it up slightly. Squaring up circular hole to fit square door latch - Source: Internet
• – Lock spacing: the distance between the upper and lower lock on the door, measured in the length of two centers of the holes. When boring deadbolt locks in a door, there are two common standards for spacing between the bottom lock and the deadbolt, they are 5-1/2” and 6” from the centers of the two holes. There are other combinations of lock spacing for specialty locks. - Source: Internet
• Before nailing the doorstop head in place, close the door so it is latched in position and nail with 40mm oval nails or a finish nail-gun if you have one. Leave at least a 2mm gap if the door and lining are to be painted so that it won’t ‘bind’. This may mean the door rattles at first but will ensure the door will still close perfectly after the decorator has applied 4 coats of paint (two to the frame & two to the door). - Source: Internet
• To identify which side of the door this is at one side of the top of the door it should be stamped with “Lock Block”. This states the side of the door that the latch should be fitted to. Lock block stamp on door to signify side that door latch should be fitted to - Source: Internet
• Tubular latches are the most common type of latch that are found on latched doors. When it comes to replacing or fitting a new one, there are a few measurements you’ll need to know that will inform your decision on what size of tubular latch you need. These measurements are the overall size of the latch and the backset. The diagram on the right shows where these measurements can be taken on a tubular latch that is not inside a door. - Source: Internet
• The Heavy Sprung Architectural Tubular Latch is the strongest latch in our range. Again the latch closes very softly but has a more powerful spring to return the handle or knob. This is ideal when fitting handles or knobs that are unsprung, and particularly useful when using exceptionally heavy hardware, such as solid stainless steel levers or solid brass or bronze door knobs. This Tubular Latch is the highest quality latch we offer, and also comes as standard with a quality, removable Forend and Strike Plate, and a black dust box to neaten the appearance and conceal unsightly chisel marks into the door frame. - Source: Internet
• We usually try and recommend the Double Sprung Tubular Latch (ZTLKA) for most applications. The Double Sprung Latch is still within an affordable price range, but is built with far superior components to the Economy latches. The term ‘Double Sprung’ means that the latch has a separate soft spring for the tongue action, allowing a gentle closing action to the door. The follower works on a separate spring with a heavy action, to ensure that heavy levers and unsprung door knobs are always returned to the horizontal position. It also has a wide range of sizes which make it the ideal choice for fitting door handles or knobs. - Source: Internet
• Tubular Latch: A cylindrical door latch that is installed into the edge of the door and is operated by a knob or lever via the spindle. These are typically used for modern pre-bored doors. WARNING: California Proposition 65. - Source: Internet
• The design of a tubular lock is similar to the pin tumbler lock, in that there are several stacks of pins. The key is a cylinder shape with notches cut around the outer or (rarely) inner edge. Each of these notches depresses a single pin inside the lock to a specific height allowing the lock cylinder to turn freely. - Source: Internet
• Latches also come in cases which are similar in size to lock cases. These are typically used in commercial applications or high quality domestic applications. For further details on the selection of these types of latches, please contact a member of our technical sales team - Source: Internet
• Backset The distance from the edge of the door to the center of the lock bore. Two standard backsets are 2-3/8” and 2-3/4”. Other backsets include 2”, used by National and Lori Lock, and 5” used by Weiser, Weslock, Kwikset and others. There are also extensions for some brands, like Schlage, that can extend the latch enough to have the lock located in the center of the door. When replacing locks the latch backset needs to match the holes bored in the door. - Source: Internet
• Next, I use a 25mm flat wood bit to drill into the centre of the doors edge. I prefer flat wood bits for fitting a mortice latch but you can use augers. If it is a paneled door I put tape on the drill bit to mark the length of the mortise latch. This will help stop you drilling too deep into the door and coming out through the moulded panel. - Source: Internet
• Push it in every now and then to check, if you need to make it wider push the latch in, hold it tight to one side and use a sharp Stanley knife to cut down the other side. When it fits perfectly drill pilot holes and screw it to the door. If you do chop too much out cut some cardboard to put behind it and keep it flush with the face of the door. - Source: Internet
• Door Knobs: In order ot prevent knuckles rapping on the door surround, a longer tubular latch is required for a door knob. A minumum of 3 inches is recommended, with a 4 inch tubular latch being the ideal size for fitting with a door knob. Most door knobs are unsprung, and will require a double sprung heavy duty tubular latch for optimum function. - Source: Internet
• On most interior door handles you will find a tubular mortice latch. An internal door latch allows you to close a door and keep it in place without locking it. For easy and smooth operation a strike plate will cushion the door handle and literally latch it into place. - Source: Internet

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• How To Measure A Tubular Door Latch
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• How To Measure A Door Latch

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