Slot & Shaft
Linear shaft desk riser with four 12 mm posts, cross clamps and a wooden shelf, still image
Linear shaft · Cross clamps

DIY Linear Shaft Shelf

A desk riser or small shelf on 12 mm linear shafts. Set the size; we list the shafts, clamps and bases, sized from the manufacturer’s drawings.

Linear Shaft Shelf60 × 20 × 16 cm
Still image — the live 3D preview loads next.

Linear Shaft Shelf

Ø12 linear shaft · 8 shafts · 22 parts
cm
cm
cm

Default value — change it to match your board.

mm

Default value — change it to match your board.

mm

Preview only — shown in the 3D view. It doesn’t change the parts list.

Fit checkAll rule checks pass: slots, threads, joints and cut lengths. We haven’t built this design ourselves yet.

Parts list · 22

A
PSFJ12 linear shaft D12Cut to 126 mm (5.0 in)Model PSFJ12-126Misumi PSFJ12-LVerifiedAmazon B0D1P4QY69Not verified — check the specs before you buy
× 4
B
PSFJ12 linear shaft D12Cut to 564 mm (22.2 in)Model PSFJ12-564Misumi PSFJ12-LVerifiedAmazon B0D1P4QY69Not verified — check the specs before you buy
× 2
C
PSFJ12 linear shaft D12Cut to 164 mm (6.5 in)Model PSFJ12-164Misumi PSFJ12-LVerifiedAmazon B0D1P4QY69Not verified — check the specs before you buy
× 2
D
Base board (cut to size or bring your own)600 × 200 × 18 mm (23.6 × 7.9 × 0.7 in)Cut to size or bring your own.No verified US source yet
× 1
E
Shelf board (cut to size or bring your own)532 × 200 × 18 mm (20.9 × 7.9 × 0.7 in)Cut to size or bring your own.No verified US source yet
× 1
F
CLSAM12 flanged shaft base D12Model CLSAM12Misumi CLSAM12Verified
× 4
G
ALKD12 cross clamp D12Model ALKD12Misumi ALKD12VerifiedAmazon B0CRPBXK37Not verified — check the specs before you buy
× 8

Paid link — we may earn a commission from qualifying purchases. Details

No “Add all to Amazon cart” yet: we haven’t verified any Amazon listing against our specs. Use the Misumi links, or check each Amazon listing before you buy.

We email you once to confirm. Only confirmed addresses count toward making the kit.

Stability estimate does not include the weight of your boards. Fixings for your shelves aren't in this list — secure them to suit your boards. Screws for the flange bases aren't in this list — choose them to suit your base board.

Load. We don’t publish load ratings. This shelf has not been load-tested by us; what it holds depends on your boards, your assembly and how you use it. The boards rest on the shafts and are not fixed by any part on this list. Don’t stand, sit or lean on it, keep it on a flat, stable surface, and test it yourself before trusting it with anything heavy or valuable.

Before you buy. This parts list is generated from the design and checked by our rules; we have not built this shelf yet. Check each listing against the spec shown here. You build and use it at your own risk — see the Terms.

Letters match the flat-lay view in the 3D preview (tap Parts list). Store links go straight to the seller.

Parts list · 22

Linear shaft shelf at a glance

SizeSet it above; the parts list and 3D view follow.
Build timeWe haven’t built it ourselves yet, so we don’t list a build time or difficulty.
CostWe don’t show prices; each line of the parts list links to the seller.

How it is built

Four 12 mm linear shafts (Misumi PSFJ12) stand upright as posts. Each post sits in a flanged shaft base (CLSAM12) that you screw to a base board. Every shelf has two shafts running across the width and two running front to back; each shaft end is held to a post by an aluminum cross clamp (ALKD12). The width shafts sit one clamp higher than the depth shafts, and the shelf board rests on the two width shafts, between the clamps. The shelf and base boards are ones you cut or bring yourself.

Height is measured from your desk to the top of the top shelf, including the base board. With two or three shelves, they are spaced evenly.

Where the numbers come from

Screws for the bases and anything that fixes the boards to the shafts are not on the parts list; choose them to suit your boards.

How to use the configurator

  1. Type the outside width, depth and height in centimeters, or use the sliders.
  2. Pick one, two or three shelves. If the height is too low for them, the fit check says so.
  3. Set the shelf and base board thickness to match your boards.
  4. Open the parts list. Each letter matches a group in the 3D flat-lay; tap Parts list on the preview to see it.
  5. Copy the link to share or save this exact size, or join the waitlist.

Load

We don’t publish a load rating for this shelf, and we haven’t built it ourselves yet.