Step 3 · Dry-Fit the New Tub
This step is crucial for preventing issues later. With a helper, carefully lift the new, empty bathtub and place it into the prepared alcove. Do not apply any adhesive or fasteners yet. Check that the tub's flange sits flush against the wall studs and rests securely on the ledger board (if one was installed). Place a level across the top rails of the tub, checking for level from front-to-back and side-to-side. If the tub has leveling feet, adjust them now. If not, you may need to use shims under the tub base. With the tub perfectly positioned, use a pencil or marker to trace the outline of the drain opening onto the subfloor. Also, make a mark on the wall studs corresponding to the top edge of the tub's flange. These marks will serve as critical reference points. Once all checks and marks are made, carefully remove the tub and set it aside on a protected surface.