SB33 - 33" Wide Sink Base Cabinet - White Shaker

Watch a step-by-step walkthrough of assembling your RTA base cabinet. Most cabinets assemble in 15–30 minutes with standard tools.

Note for the SB33: This sink base is assembled the same way as the standard base cabinet shown in the video, with one difference — there are no drawers in this cabinet. Instead, the false drawer front attaches to the face frame to cover the sink bowl.

All measurements are nominal. Allow ±⅛" tolerance. Confirm your sink's cutout and bowl dimensions against this cabinet before installation. Consult your designer or installer for exact clearances when planning countertops and plumbing.

• Box: ½" solid plywood on all four sides — no particle board. Plywood holds screws significantly better and won't swell or delaminate if exposed to moisture — important under a sink.
• Face Frame: Solid wood, not MDF. Stays rigid, accepts paint and stain well.
• Doors: Two butt-style doors with soft-close European hinges, 6-way adjustable.
• False drawer front: A fixed drawer front that attaches to the face frame across the top of the cabinet. It covers the sink bowl and matches the look of a real drawer, keeping the run visually consistent.
• Configuration: Sink base — no drawers and no shelves. The interior is left open to receive the sink bowl and plumbing.
• Interior: Color-matched box.
• Door bumpers: Included.

RTA (Ready to Assemble) is the best value and ships flat-packed, reducing freight cost and damage risk. Assembly takes 15–30 minutes with standard tools. RTA orders are processed in up to 14 business days before they are ready to ship or collect — though most are ready within 3–8 business days, if not sooner.

Factory Assembled units arrive pre-built and ready to install. Ideal if you want to skip assembly or need a turnkey solution for a client. Assembled cabinets are bulkier to ship, so freight can be higher. Factory assembled orders are processed in up to 21 business days — typically 10–15 business days on average. A factory-installed roll-out tray option is available above. Contact us — we can often reduce freight costs, especially on larger orders.

How does the false drawer front on the SB33 work?
Because a sink base has no room for a real top drawer (the sink bowl sits right behind it), the SB33 includes a false drawer front that attaches to the face frame across the top. It matches the look of a real drawer front and conceals the sink bowl.

Does the SB33 come with a sink?
No — the SB33 is the cabinet only. It's designed to receive a customer-supplied kitchen sink dropped in from the countertop above.

Why are there no drawers or shelves?
A sink base is left open inside to make room for the sink bowl and its plumbing. That's why the SB33 has butt-style doors, a false drawer front, and no drawers or shelves.

Are these cabinets solid wood or particle board?
The box is ½" solid plywood. The face frame is solid wood. We do not use particle board. The doors are engineered HDF (high-density fiberboard) with a solid wood shaker profile — standard across the industry for painted shaker doors.

How long does assembly take?
15–30 minutes with a drill and rubber mallet. Assembly matches a standard base cabinet, except there are no drawers — instead the false drawer front attaches to the face frame to cover the sink bowl. Watch the assembly video above for a full walkthrough.

Can I add a roll-out tray?
Yes — the optional ROT33 Universal Roll-Out Tray can be used with this cabinet to add pull-out access below the sink, where clearances allow.

Do you offer trade pricing?
Yes. Reach out through our contact page to discuss volume pricing and trade account options.

What is your return policy?
We accept returns within 30 days of delivery on unassembled cabinets in original packaging. Damaged or defective items are handled on a priority basis — send us photos and we'll make it right. For returned unwanted items you will be responsible for return shipping and a 25% restocking fee.

• RTA orders are typically processed within 3–8 business days (up to 14 business days).
• Factory assembled orders are typically processed in 10–15 business days (up to 21 business days).
• RTA cabinets ship in flat-pack cartons — significantly lower freight risk than assembled units.
• Shipping transit time after processing varies depending on distance from our warehouse locations in Ohio and Florida.
• Warehouse collection is always free. Collections are by appointment only, Monday–Friday, 8:00 AM–3:30 PM, excluding public holidays. Contact us to book a pickup time.
• Factory assembled cabinets may incur higher shipping costs due to volume. Contact us — we can often reduce freight costs on larger orders.
• Inspect your delivery for damage before signing. Note any damage on the delivery receipt and contact us immediately.