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Measure your rig
Our planner only uses sourced numbers, and for a lot of rigs the arch position, arch height and opening sizes just aren't published. Ten minutes with a tape measure fills those gaps for everyone. We don't ask for your name or email.
How to measure
- Measure on the floor, not at the top of the sides. Arches and tubs taper, so higher readings come out too generous.
- Write everything in millimetres (1 in = 25.4 mm).
- Note any tub liner, mat or carpet. It changes widths by 10–30 mm. Measure with it in if you can't remove it, and tell us.
- Take widths at the narrowest point and lengths to the first obstruction (tailgate seal, seat base).
- Leave a box empty if you're not sure. A blank is better than a guess.