How to Build an Adjustable Height Table? | Frame-Up Assembly

Build an adjustable height table by mounting a lifting base frame to your tabletop, then adding the control and power components for electric models.

For the full breakdown, see our best Adjustable Height Side Table guide.

Assembling an adjustable height table comes down to one sequence: build the base frame, attach it to the top, then wire the motor. Whether you’re converting a fixed desk into a sit-stand workstation or building a side table from scratch, the process follows the same logical order found in manuals from Ofs and Knape & Vogt. Here’s the full breakdown, from unboxing to the first height adjustment.

What Parts Make Up An Adjustable Height Table?

An adjustable height table consists of a tabletop, telescoping legs or columns, a base and foot assembly, support beams, and the adjustment system. The adjustment system is either a manual mechanism or an electric motor setup with a control box and handset.

Knowing the parts matters because assembly order depends on them. Manual tables use a hand wheel or locking knobs. Electric versions add a control box, motor cables, and a power cord that all connect after the frame is secure.

1. Protect the work surface. Lay down cardboard or a blanket so the tabletop finish doesn’t get scratched.
2. Place the top upside down. All frame work happens from underneath, so flip the tabletop over on the protected surface.
3. Loosely assemble the base. Connect the legs or columns, support beams, and feet. Leave bolts finger-tight.
4. Center the frame. Position the assembled base under the tabletop, checking that it is evenly spaced from all four edges.
5. Tighten all hardware. Once the base is centered and aligned, tighten every fastener fully.
6. Connect the electric system. For motorized tables, attach the control box and handset, then plug in motor and controller cables, followed by the power cord.

For manual tables, the hand wheel or locking knobs are installed after the frame is secure.

Manual Versus Electric Adjustment: What Changes

The difference between manual and electric adjustable tables comes down to how you change the height after assembly. Everything else — the base frame, the centering step, the tightening order — stays the same.

Manual tables use a hand wheel or locking knobs. You loosen the knob, lift or lower the column to the desired height, and re-tighten.

Electric tables replace that manual step with a motor. Once the frame is mounted, you attach the control box under the top, connect the handset, and run the motor cables from the legs to the controller. The power cord plugs into the wall, and the handset buttons adjust the height.

Build Cautions And Compatibility Limits

• Never fully tighten screws until parts are aligned. Loose hardware lets you shift the frame for a perfect fit; tightened bolts lock in misalignment.
• Keep the top on a non-marring surface. The finish on most tabletops scratches easily when flipped over on a hard floor.
• Route cables after the frame is secure. Attaching wires early means they get pinched or tangled as you tighten the frame bolts.