How to Assemble RTA Cabinets Like a Pro

Warren Mueller
Sep 16
3 min read

Assembling ready-to-assemble (RTA) cabinets can seem intimidating at first. But with the right approach, tools, and patience, it becomes a straightforward task. I’ve put together a clear, step-by-step guide to help you assemble your cabinets efficiently and correctly. Whether you are a homeowner, contractor, or renovator, these tips will make the process smoother and more enjoyable.

Preparing for RTA Cabinet Assembly: What You Need to Know

Before you start, preparation is key. RTA cabinets come with all the parts and hardware you need, but organizing everything will save you time and frustration.

Unbox carefully: Lay out all the pieces on a clean, flat surface. Check the parts list to ensure nothing is missing.
Gather tools: You will typically need a screwdriver (preferably a power drill with screwdriver bits), a hammer, a level, clamps, and wood glue.
Read instructions: Each cabinet brand may have slight variations. Take time to read the manual thoroughly.
Clear your workspace: Make sure you have enough room to work comfortably and safely.

Taking these steps will help you avoid common mistakes and speed up the assembly process.

Close-up view of unboxed cabinet parts laid out on a flat surface — Organized cabinet parts ready for assembly

RTA Cabinet Assembly Tips for a Smooth Build

Here are some practical tips I use every time I assemble RTA cabinets:

Start with the box: Assemble the cabinet box first. This usually involves connecting the sides, bottom, and back panels.
Use clamps: Clamps hold pieces steady while you screw or nail them together. This keeps everything square.
Pre-drill holes if needed: Some kits require pre-drilling to avoid splitting the wood.
Check for squareness: Use a carpenter’s square or measure diagonals to ensure the box is perfectly square before tightening screws.
Attach the face frame last: If your cabinets have a face frame, attach it after the box is assembled.
Install hinges and hardware carefully: Follow the instructions for hinge placement. Test doors for smooth operation before final tightening.

These tips help maintain quality and durability in your finished cabinets.

Eye-level view of a partially assembled cabinet box with clamps holding the sides — Clamped cabinet box during assembly

Step-by-Step Guide to Assemble Your Cabinets

Here is a simple step-by-step process to follow:

Identify all parts: Separate panels, shelves, doors, and hardware.
Assemble the cabinet box:

Attach side panels to the bottom panel using screws or cam locks.

Secure the back panel, ensuring it fits flush.

Check alignment: Use a level and square to confirm the box is even.
Attach the face frame (if included):

Align the frame with the box front.

Secure with screws or nails.

Install shelves:

Insert shelf pins or brackets.

Place shelves on supports.

Attach doors and drawers:

Mount hinges on doors.

Attach doors to the cabinet frame.

Install drawer slides and drawers.

Final adjustments:

Adjust hinges for door alignment.

Check drawer operation.

Tighten all screws.

Following these steps carefully will result in sturdy, professional-looking cabinets.

High angle view of assembled cabinet box with shelves and doors attached — Completed cabinet box with doors and shelves installed

Common Challenges and How to Overcome Them

Even with clear instructions, some issues can arise. Here are common problems and solutions:

Misaligned doors: Adjust hinges slowly and evenly. Use a level to check vertical alignment.
Loose joints: Apply wood glue before screwing parts together for extra strength.
Damaged parts: Inspect all pieces before assembly. Contact the supplier immediately if you find damage.
Difficulty with hardware: Use the right screwdriver bit and avoid overtightening screws to prevent stripping.

Patience and attention to detail are your best tools when facing these challenges.

Final Thoughts on RTA Cabinet Assembly

Assembling your own cabinets can be rewarding and cost-effective. With the right preparation and approach, you can achieve professional results. Remember to take your time, follow instructions, and use the tips shared here.

If you want to learn more about rta cabinet assembly, Online Cabinets Canada offers quality products and helpful resources to guide you through the process. Their cabinets are designed for easy assembly and long-lasting use, making them a great choice for your next project.

Enjoy the process and the satisfaction of creating beautiful, functional cabinetry for your home.