Saillie des poignées de porte et dégagement à proximité des cadres, des moustiquaires et des panneaux adjacents

A door handle that clears the frame on a drawing can still scrape, jam or pinch fingers once the door is installed. The reason is usually that projection was checked in one position only. In service, a handle sits inside a moving envelope. That envelope includes the frame, an insect or security screen, a neighbouring sliding panel, the user’s hand and every installation tolerance between them. A handle that is a few millimetres too proud can leave knuckles with nowhere to go. A handle that is recessed too deeply can leave fingers with nothing to grip.

This guide is for architects, door and window system manufacturers, OEM buyers, distributors and installers who need to specify handles for tight openings. It explains what projection and clearance actually measure and where clearance gets consumed. It also compares handle types and lists the dimensions to confirm before approving a sample or requesting a quote.

What Is Door Handle Projection, and What Is Clearance?

Door handle projection is the maximum distance any part of the handle assembly stands proud of the door or panel face. That includes the grip, the base or rose, fixing covers, gaskets and any part that moves when the handle is operated. Clearance is the free space that remains between that assembly, or the user’s hand, and the nearest fixed or moving obstruction.

Two kinds of clearance are easy to confuse:

• Hardware clearance: the gap between the metal or plastic parts and a frame, screen, stile or adjacent panel.
• Hand clearance: the space a hand needs to reach behind a grip, pull and release without contacting something.

A handle can pass the first check and fail the second. The U.S. Access Board’s guide to doors and gates recommends at least 1½ inches (about 38 mm) of knuckle clearance for bars, pulls and similar hardware to make gripping easier. That is a recommendation for accessible design, not a universal requirement. It does show how much more space a hand needs than a handle does. The ergonomic side of this question, including grip section and lever return, is covered in CHIER’s article on door handle ergonomics, grip diameter, lever return and accessibility.

Where Clearance Gets Consumed

Nominal clearance is a drawing value. Working clearance is what is left after real conditions have taken their share. The table below separates the interfaces that most often limit a handle and shows what to verify at each one.

Each row has its own failure mode, so one number cannot cover all of them. A drawing that states only “projection: X mm” leaves most of the table unanswered.

A Worked Example of Working Clearance

The figures below are an arithmetic illustration only. They are not recommended tolerances or typical product values.

Suppose a sliding system leaves a nominal 20 mm gap between the outer face of the moving panel and the adjacent panel. A surface-mounted pull projects 12 mm. Then allow for the conditions that erode the gap:

• 2 mm for frame installation variation
• 2 mm for panel deflection when pulled
• 1 mm for roller wear

The arithmetic is 20 mm − 12 mm − 2 mm − 2 mm − 1 mm = 3 mm of remaining working clearance.

That 3 mm protects the hardware. It does nothing for fingers. A hand cannot enter a 3 mm gap, so the user either pulls on the handle’s visible edge with fingertips or reaches around the panel edge. In this scenario, hardware clearance is adequate and hand clearance is not. The handle is not necessarily wrong. The gap, the handle type and the way the user grips the panel have to be decided together.

How Handle Type Changes the Clearance Problem

No handle type is best near obstructions in every case. The right choice depends on which constraint is tightest: projection, grip depth, panel thickness or operating position. The comparison below is qualitative and gives no product dimensions, because values vary by model and system.

Some of these types change shape when used. A fold-out handle has two positions and a lever has at least two. Even a touch latch changes the panel position when it releases. Clearance has to be checked in the operated position, not just the resting one.

For the choice between actuating and fixed grips, CHIER’s guide on lever handles versus pull handles for each door application explains why a sliding panel often calls for a pull while a latched hinged door calls for a lever.

Handles Near Door Frames and Jambs

Frame clearance is the most familiar problem and the one most often judged at a single position. Two checks matter.

The closed position. A handle or lever end that sits near the jamb may be clear when the door is closed and still strike the frame during opening or closing. The handle’s distance from the panel edge, and its sweep if it rotates, should appear on the drawing.

The fully open position. Where the door opens fully against a wall or jamb, the handle may be trapped against or hidden by the frame. For projects covered by the ADA, section 404.2.7 of the ADA Standards requires operating hardware on sliding doors in the fully open position to be exposed and usable from both sides, subject to the exceptions in that section. That requirement applies only where the Standards govern the project. Even where it does not, a handle that disappears behind the jamb is a usability problem.

The same Access Board guide states that clear width is measured to the leading edge of sliding doors. It also states that no projection into the clear width is permitted below 34 inches. For edge pulls and handles near the leading edge, projection can therefore affect the usable opening as well as the clearance to the frame.

Handles Near Insect and Security Screens

Screens add a second layer outboard of the door, and their position is often decided by a different supplier from the handle. A few interactions are worth checking:

• Screen frame against the handle base. An exterior-mounted handle with a raised base or fixing cover can rub the screen frame as the screen slides.
• Screen handle and latch alignment. Andersen’s help centre notes that the handle of a gliding insect screen should align with the screen latch on the patio door frame. It also notes that a screen installed upside down can cause misalignment. This is one manufacturer’s screen-specific note. It still shows that handle positions across the door, screen and frame depend on each other.
• Hinged or pleated screens. Where a screen swings or folds, check the handle projection against the screen’s travel, not only its closed position.

The practical rule is to request the screen drawing, or at least the screen frame depth and position, when specifying the handle. Where screens are fitted after the doors, write the allowed handle projection into the door specification so the screen supplier knows the envelope.

Handles Near Adjacent Sliding Panels

Multi-panel sliders create the narrowest gaps. In a two- or three-track system, the moving panel’s handle faces the neighbouring panel across a gap set by the track spacing. Near the overlap or interlock zone, the handle also has to stay out of the way as the panels meet.

Three failure modes appear repeatedly:

1. Static fit, dynamic interference. The handle clears in the closed position but strikes the neighbouring stile, or catches knuckles, during travel.
2. Projection growth over time. A loose fixing lets the handle tilt outward, so projection increases after installation. CHIER’s guide to common sliding handle problems, including loose fixings and panel interference describes how forcing a dragging panel loosens fasteners until the handle begins striking the adjacent panel.
3. Hand trapped at the end of travel. The hardware clears but the user’s hand is caught between the panel edges.

Check the handle at both ends of travel and with the panel under pulling load, since panel deflection reduces the gap. A test with a real hand on the grip tells you more than a drawing overlay.

When Recessed, Flush and Pocket Options Make Sense

When the gap cannot grow, the usual answer is to move the grip into the panel. Recessed pulls trade projection for panel depth, and that trade only works when the panel construction allows it.

For pocket doors, the clearance envelope includes the faceplate, screws, guides and lock components, and a faceplate that looks flush still projects. CHIER’s article on pocket door handles, flush pull depth, edge pulls and panel clearance works through this with published manufacturer specifications and a clearance calculation.

For sliding doors and windows with recessed pulls, the cutout is part of the clearance answer. Pocket depth, corner radius, edge distance and fixing positions control whether the body seats properly and whether enough material remains to hold the screws. These are covered in CHIER’s guide to recessed sliding handle cutouts, depth, corner radius and fixing details.

A viewpoint worth qualifying: lowest projection is not automatically best. Minimising projection works when the panel is thick enough, the pull force is light and the surrounding gap is truly limited. It can backfire on a heavy panel. A shallow recess pushes users to pull with fingertips, which raises peak force and concentrates load at the cutout edge. A better approach is to set the projection limit from the tightest real constraint. Then check that grip depth, panel weight and operating force still work together.

Touch Locks and Push-Release Mechanisms

Touch locks and touch latches remove the projecting handle altogether, which makes them attractive in tight spaces. They introduce a different clearance variable: the panel itself moves. In a push-to-release mechanism, a spring plunger can push the panel outward after release so it can be gripped. That ejected position has to clear whatever sits beside it.

CHIER’s explanation of touch locks and push-to-engage mechanisms for sliding panels distinguishes retention, release, ejection and true locking functions. For clearance, three questions matter. How far is the panel released? Does a hook or keeper project? Does the ejected panel position interfere with the frame or a neighbouring panel? A low-projection face does not mean a shallow installation, because internal mechanism depth still has to be checked against profile space.

Common Mistakes When Specifying Handle Clearance

• Checking one position. Closed is not the only position. Operated, ejected, fully open and loaded positions all matter.
• Treating the handle supplier’s drawing as the system. The handle drawing shows the handle. The frame, screen and neighbouring panel come from elsewhere.
• Ignoring finish and gasket thickness. Coatings, gaskets and fixing covers add to projection. Confirm whether the quoted projection is measured on the installed assembly.
• Confusing hardware clearance with hand clearance. A part can clear while the hand cannot.
• Specifying by catalogue photo. Projection, recess depth and fixing centres are not visible in a photo.
• Assuming accessibility rules apply, or do not apply, without checking. The ADA Standards apply to covered facilities, not every private residence. Confirm the target market’s requirements before making an accessibility claim.

What Should Buyers Specify Before Requesting a Quote?

A quotation request that includes the clearance conditions gets a more accurate sample and fewer revisions. Include:

1. Maximum permitted projection, measured from the panel face to the highest point, including covers and gaskets.
2. Panel thickness, material and construction, since these set whether a recess is possible.
3. Gap to adjacent panels, screens or frames, with the position of each at both ends of travel.
4. Handle position, including distance from the panel edge and mounting height.
5. Operating states, such as lever sweep, fold-out position or touch-lock release travel.
6. Fully open position, and whether the handle must stay reachable from both sides.
7. Fixing details and panel reinforcement, because looseness raises projection over time.
8. Target market and accessibility requirements, if any.
9. Photos or drawings of the installation, showing neighbouring panels and screens.

Send these with a profile section or panel drawing. Ask the supplier to return a dimensioned section showing projection and operated positions. CHIER’s pages describe OEM and ODM support that includes drawing review and sampling, which is the right starting point for custom handles in tight openings. Fit the first sample to the real assembly and move it through the full travel with a hand on the grip. Approve production only after that test.

Questions fréquemment posées

How far should a door handle project from the door?

There is no universal figure. Maximum projection depends on the gap to the frame, screen or adjacent panel, the user’s hand space, and the handle type. Set the limit from the tightest working clearance after tolerances, then confirm it on a fitted sample.

How much clearance should a handle have from a door frame?

Frame clearance is set by the door system and handle design, not by one standard value. Check closed, open and operated positions. For pulls where accessibility matters, the U.S. Access Board recommends at least 1½ inches of knuckle clearance.

Can a sliding door handle hit the insect screen?

Yes. An exterior handle base, fixing cover or lever can rub a screen frame or catch a screen’s travel path. Obtain the screen frame depth and position before approving handle projection. Test the screen fully closed and fully open.

Are recessed handles always better for tight clearances?

No. They reduce projection but also reduce finger depth, and they need enough panel thickness and fixing material. On heavy panels, a shallow recess can push users to pull with fingertips, so grip depth and operating force still need checking.

Do accessibility rules apply to handle clearance?

Only where the standard governs the project. The ADA Standards cover specified facilities, not every private residence. Where they apply, hardware must be operable with one hand without tight grasping, and sliding-door hardware must be usable when fully open.

What should an RFQ say about handle projection?

State maximum projection, panel thickness and construction, gaps to adjacent panels, screens and frames, handle position, operating states and fully open position. Add installation drawings or photos so the supplier can check the clearance envelope.