Top Pivot or Glass Door Top Patch: Which One Goes With Your Floor Spring?
Updated 2026-11-05 · RAYEN 雷茵
What does the top fitting do?
The door turns on a vertical line from the spindle at the bottom to the pivot at the top. If those two points do not line up, the door binds and will not settle in the closed position. So the top fitting is part of the floor spring order, not an extra.
Every model on this page is 304 stainless steel, in satin stainless or matt black. Match the finish to your floor spring, so one door carries one finish.
What should you measure?
- Door type: timber, metal or frameless glass.
- Top rail or door edge: the space available for the body. Compare it with the body size below.
- Glass thickness, on a frameless door.
- The floor spring model. On glass doors this decides the patch.
- Door head: what the top fixing plate will screw into.
Top pivot sizes
| Model | Body size |
|---|---|
| D-3010 | 30 × 12 × 157mm |
| D-3011 | 12 × 28 × 157mm |
| D-3011A | 28 × 39 × 147mm |
| D-3019 | 28 × 26 × 180mm |
| D-3021 | 15 × 30 × 138mm |
The Chinese name of all five models is adjustable top pivot. The photos show how they differ.
- D-3010 and D-3011 are long bodies with a toothed adjuster and a flat plate. They share the 157mm length but read 30 × 12 and 12 × 28 in the other two directions, so check which way each dimension runs on the drawing.
- D-3011A has an L-shaped cover at one end and a body of 28 × 39 × 147mm.
- D-3019 is the longest at 180mm. Its plate carries a raised collar with a roller bearing inside.
- D-3021 is the shortest at 138mm, with a channel-shaped body and an adjusting screw at the end.
Send us your floor spring model and door section, and we confirm the pivot against the drawing.
Glass door top patch sizes
| Model | Body size | Glass thickness | Cut-out | Pairs with |
|---|---|---|---|---|
| D-1042 | 173 × 25.4 × 54mm | 10–12mm | — | D-1031 |
| D-1043 | 202 × 36 × 54mm | — | — | DZ-2031 / D-1051 |
| D-3017 | 138 × 25 × 36mm | — | 107 × 53.5mm | D-3015 |
| D-3018 | 124 × 25 × 36mm | — | 107 × 70.5mm | D-3016 |
Each patch names the floor spring it pairs with, and the pairing is one you should keep.
- D-1042 goes with D-1031.
- D-1043 goes with DZ-2031 and D-1051.
- D-3017 goes with D-3015.
- D-3018 goes with D-3016.
Which part sets the glass thickness?
The narrower of the two. D-1031 takes 10–14mm glass, but D-1042 takes 10–12mm. Order that pair and your door is a 10mm or 12mm door. If the project calls for 14mm glass, ask us before you commit to this pair.
D-3015 and D-3016 take 8–12mm glass. Their patches, and D-1043, do not list a glass range, so confirm yours with us.
What does the cut-out mean?
D-3017 and D-3018 list a cut-out in the glass: 107 × 53.5mm and 107 × 70.5mm. The two are not interchangeable, even though the bodies look alike. D-3017 is 138 × 25 × 36mm, and D-3018 is 124 × 25 × 36mm.
Toughened glass cannot be cut afterwards. The notch has to be in the glass order, so send the glass processor the patch drawing before toughening. D-1042 and D-1043 list no cut-out figure. Ask us for the drawing before the glass goes to the toughening line.
A worked example
A shop entrance has a frameless door in 12mm glass, 110kg, 1050mm from spindle to edge. The floor spring size chart gives D-1051.120. That floor spring pairs with D-1043, body 202 × 36 × 54mm. Ask for the patch drawing, confirm 12mm glass, and pass the notch to the glass processor. Both parts go on one order, in one finish.
A timber door on D-1032.100 needs a top pivot instead. Measure the top rail, compare it with the bodies above, and send us the section.
What should you write on the order?
- Top pivot or top patch model.
- The floor spring it goes with, with grade.
- Door material, or glass thickness.
- Finish: satin stainless or matt black, the same as the floor spring.
- Quantity, one per door leaf.
- For glass, a note that the notch follows our drawing.
Open the selection tool：Floor Spring Selector
Questions buyers ask
Can I use a top pivot on a frameless glass door?
Use a top patch. It holds the corner of the glass, and each one is paired with named floor springs. D-3017, for example, goes with D-3015.
Can I use 14mm glass with D-1031?
D-1031 takes 10–14mm, but its paired patch D-1042 takes 10–12mm. Talk to us before you order 14mm glass for this pair.
Do the top pivots come in black?
Yes. All 5 top pivots and the glass door top patches come in satin stainless or matt black, in 304 stainless steel.
