LastPlank: Flooring Calculator

The last row can spoil a flooring job. You reach the far wall and the gap is a sliver of plank that will not stay put and looks wrong. LastPlank shows you that row before you cut the first one.

Type the room's width and length and the size of your plank. LastPlank draws a plank flooring layout on screen: every row, every joint, the expansion gap at the walls, and the cut end of each row marked in blue. The first and last row widths sit underneath in large figures.

If the last row would be too thin, it says so, and Balance rows trims the first row so both sides of the room finish at the same width.

HOW MANY BOXES
The flooring calculator counts the planks in your layout, then adds your chosen spare percentage. Enter how many planks are in a box, or the area printed on the box. It works as a laminate flooring calculator and for vinyl plank or engineered wood boards alike. Add the price per box, and if you like, underlay per square foot or metre and trims per foot or metre of wall, and you get an estimated material cost.

THE CUT LIST
Row by row, each cut in the order you lay it: "cut to 732 mm", "rip every plank to 101 mm", "from an offcut". The cut list uses large text, with a tick box for each cut.

OFFCUTS AND STAGGER
Each row starts with a length that keeps its joints clear of the row before, using a leftover from an earlier row when one fits. You set the gap at the walls, how far apart the joints stay, the shortest end piece and the thinnest row you will accept. Follow your floor's own fitting guide: these are starting figures.

REAL ROOMS
Rectangles, L-shaped rooms and cut-outs for a kitchen island, a hearth or a fitted cupboard. Run the planks across the room or down it and watch the last row change. Rooms using the same plank share a box count, so leftover planks are counted towards another room.

THE JOB SHEET
A PDF with the shopping list for the shop, each room drawn, and its cut list, ready to share or print.

Metric or imperial, fractions included. Room data is stored locally, with a backup file you can keep.

WHAT IS INCLUDED
One rectangular room with its full drawing, row widths, box count and cost is in the standard version, with a small banner on the Rooms screen. A single one-time unlock adds multiple rooms, L shapes and cut-outs, the cut list and the job sheet, and removes the banner. No account is needed, and saved rooms are never locked.

Every figure is an estimate from the measurements you type. Check the room and each cut before you cut.

Questions? Write to support@clearstackapps.com