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Cat Wall Steps[8/4 Wide · 4ft · 5-Pack]
One pack. One build. All 5 boards used. • Makes 6 cat steps and a perch
Shop Black Walnut 8/4 Wide · 4ft Pack Shop All Speciesselect 4' Lengths / 6-8"
How it goes together
Black Walnut
Hard Maple
Cherry
White Oak
Red Oak
Ash
Hickory
Ambrosia Maple
Sapele*
Padauk*
Purpleheart*
*Exotic — not available for shipment to US customers.
A staircase of thick hardwood steps up the wall, with a wide lookout perch at the top. Each step is two 15" pieces edge-glued into a solid 15" × 11" platform with a grippy tread, sitting on rated steel brackets screwed into studs. Boards 1–4 make the six steps and board 5 makes the perch. Straight cuts and simple glue-ups — a good first glue-up project.
Quick Build — for experienced woodworkers
| Part | Qty | From | S2S size |
|---|---|---|---|
| Step pieces | 12 | Boards 1–4, three each | 15" × 5½" × 1¾" |
| Perch pieces | 3 | Board 5 | 15" × 5½" × 1¾" |
Steps: two 15" pieces edge-glued → 15" × 11" × 1¾" (about 10¾" after jointing).
Perch: three 15" pieces from board 5 edge-glued → 15" × 16½" × 1¾" (about 16" after jointing).
Mounting: 2 steel shelf brackets per step (10" arms, 14" for the perch), rated 50 lb+ each, set 1½" in from the ends. At least one bracket per step into a stud with #10 × 3" structural screws; the other into a stud or a ¼" steel toggle bolt.
Step to bracket: #10 × 1" pan-head screws with washers through slotted bracket holes. No glue — the step must move across its grain.
Tread: cork, sisal or carpet glued on top, ½" in from the edges.
Finished size: Each step 15" W × 11" D (about 10¾" after jointing) × 1¾" thick, about 6 lb in walnut. Perch 15" × 16½" (about 16"), about 9 lb. Laid out 14" apart in height and 12" sideways, the run covers about 7ft wide × 8ft tall.
Before You Start
Shopping List
- 1 lumber pack — 8/4 Wide · 4ft (6–8" wide, S2S)
- Wood glue (Titebond II or III)
- 12 steel shelf brackets, 10" arm, rated 50 lb or more each
- 2 steel shelf brackets, 14" arm, rated 50 lb or more each (perch)
- #10 × 3" structural screws (3 per bracket into studs)
- Up to 7 × ¼" steel toggle bolts rated 100 lb+, for brackets that miss a stud
- #10 × 1" pan-head screws and washers (2 per bracket)
- Cork sheet, sisal mat or low-pile carpet, about 7 sq ft
- Contact cement or construction adhesive
- Sandpaper 120 / 180 / 220
- Finish: hardwax oil or water-based poly
Tools
- Saw for crosscuts (mitre saw or circular saw with a speed square)
- Jointer, straight-line rip jig or hand plane
- 6 bar clamps, 18" or longer
- Router with ¼" roundover bit (or sandpaper)
- Drill/driver, countersink bit, pilot bits
- Metal file or step bit (to slot the brackets)
- Stud finder, 2ft level
- Utility knife (tread)
- Random-orbit sander or sanding block
Why S2S only? The 6–8" wide 8/4 boards come S2S: both faces planed, edges rough. Plan on losing about ¼" per edge when you straighten them.
Our sizing assumptions: ⅛" per saw cut · 6–8" wide 8/4 S2S boards trimmed ½" each end and ¼" off each rough edge (5½" clean at the narrowest), planned at 1¾" thick · sizes drawn for the narrowest board in the pack. Wider boards give you a bigger offcut or a wider part — never a shortage.
Step-by-Step
S2S Lumber Pack (6–8" wide)
Surfaced 2 sides — straighten edges first
- 1 Prep the boards. Trim ½" off each end to remove any end checks. Joint one edge straight, then rip the other edge parallel (¼" off each rough edge is our planning allowance).
- 2 Cut the parts. Square one end of each board. Clamp a stop block at 15" and cut every board into three pieces — 15 in all. Boards 1–4 give 12 step pieces, board 5 gives 3 perch pieces.
- 3 Glue up. Pair the pieces best face up and joint the mating edges until no light shows. Edge-glue the 12 step pieces into 6 steps, each 15" × 11". Glue the 3 perch pieces into one perch, 15" × 16½". Long grain to long grain. Clamp, scrape the squeeze-out once it turns rubbery, and leave overnight.
- 4 Flatten and round. Plane or sand the seams flush. Trim the ends square if the glue-up slid. Round every edge and corner with a ¼" roundover bit or sandpaper — cats land on these at speed, and so do heads.
- 5 Sand and finish. Sand 120 → 180 → 220. Finish all faces with hardwax oil or water-based poly. Let it cure fully (about a week) before a cat uses it.
- 6 Add the tread. Cut cork, sisal mat or low-pile carpet ½" smaller than the top of each step. Glue it down with contact cement or construction adhesive, roll it flat and weight it overnight. Bare finished wood is slippery for paws.
- 7 Plan the layout. Find the studs and mark them. Tape paper templates on the wall: each step about 14" above the last (12"–16" is comfortable) and shifted about 12" sideways. Start the lowest step about 18" off the floor. Put the perch at the top. Slide the templates until at least one bracket under every step lands on a stud.
- 8 Mount the brackets. Use two steel shelf brackets per step, 10" arms, rated 50 lb or more each; use 14" arms for the perch. Set them 1½" in from each end of the step. Pre-drill and drive #10 × 3" structural screws into the stud. Where the second bracket misses a stud, use a ¼" steel toggle bolt rated 100 lb or more — never a plastic anchor. Level each pair.
- 9 Fix the steps. File or drill each hole in the bracket arms into a ⅜"-long slot running front to back. Set the step on its brackets, back edge to the wall, and drive pre-drilled #10 × 1" pan-head screws with washers up into the step, snug but not tight. The slots let the 11" step move across its grain. Push down hard on each front edge to test it — nothing should flex.
Why glue two boards per step? One 5½" board is too narrow for a cat to land on with confidence. Two boards give an 11" platform, and the seam is long grain to long grain, so it is as strong as the wood around it.
Why slotted holes? An 11" step grows and shrinks about ⅛" front to back through the year. Slots in the bracket arms let it move. Glue or tight screws would let it crack.
Why studs? A jumping cat hits a step with three to four times its weight. A 12 lb cat lands with 40–50 lb. Drywall anchors alone will work loose. Every step needs at least one bracket in a stud.
Why pre-drill? Maple, oak and hickory split if you drive a screw without a pilot hole. Pre-drill every screw and countersink so the heads sit flush.
Make It Yours
- Zigzag: alternate the steps left and right instead of one diagonal line — it takes less wall width.
- Hammock perch: hang a fabric cat hammock under the top perch from four screw eyes.
- Two-tone: walnut steps and a maple perch, or mix species across the run.
Safety and Care
- Wear eye and hearing protection. Use a push stick for every rip under 4" wide.
- Pre-drill every screw — hardwoods split without a pilot hole.
- Mount into wall studs (or rated anchors sized for the load). Check for wires and pipes before drilling.
- Each step is rated for one cat jumping on it — about 50 lb of impact. Never stand on the steps or let children climb them.
- Keep the lowest step at least 18" off the floor and away from doors that swing into it.
- Let the finish cure fully before the cat uses the steps.
Frequently Asked Questions
The 6–8" wide 8/4 pack comes S2S (faces planed, edges rough). Straighten the edges with a jointer, a table saw and a straight-line jig, a track saw, or a hand plane.
Yes. With rated brackets and at least one bracket per step in a stud, each step takes a 15–18 lb cat landing at full speed. For a very heavy cat, put both brackets into studs where your layout allows, or add a third bracket.
That is normal — a 15" step can't reach two studs 16" apart. Screw one bracket into the stud and fix the other with a ¼" steel toggle bolt rated 100 lb or more. Never use plastic plugs.
Most do. Start with the perch near a window, put treats or catnip on the lower steps, and keep the spacing at 12"–14" until your cat is confident.
Planned offcuts only: about 1¾" off the end of each board. All 5 boards go into the steps and perch.
Yes. A 2ft wide pack makes 5 single-board steps at 22" × 5½" (one per board). They are narrow, so they suit young, nimble cats; for an 11" step, use this 4ft plan.
