Which door fits my RV?

Measure the rough opening. A 26" x 78" cutout needs the square door (A). A 26" x 72" cutout needs the radius door (B). The shape of the top corners must match too: square for A, curved for B.

Is the radius door worth the savings?

Yes, if it fits. B is $742.00 at Amazon versus $819.66 for A as of November 3, 2026, about $78 less, and both include the window, screen door, lock and slide panel.

Do both come with a screen door and lock?

Yes. Both ship with a color-matched screen door, a 12" x 21" obscure glass window, a lock and a clear slide panel. A specifies a flush lock with deadbolt.

Neither is documented as longer-lasting. Both use an aluminum frame, fiberglass skin and obscure glass at 2-1/4 inches thick. Fit and sealing matter more than the model, so pick the one that matches your opening.

Can I put the square door on a radius opening?

No. The corners and height will not seal, and you will get leaks and gaps. Match the profile and the rough opening height to your RV.

Why does one door cost more?

A is taller at 78 inches and is listed by 5 stores; B is 72 inches and listed by 1 store. The $77.66 gap as of November 3, 2026 reflects size and limited competition on B, not extra features.

AP Products 015-217718 RV Square Entrance Door - 26" x 78", Polar White vs AP Products 015-217709 RV Radius Entrance Door - 26" x 72", Polar White

Buy the 26" x 72" radius door (B) if your rough opening is 72 inches tall and you want the lower price: $742.00 at Amazon as of November 3, 2026, versus $819.66 at Amazon for the square door (A). Buy the 26" x 78" square door (A) only if your opening is 78 inches tall or your RV has square top corners. The two are the same door in different shapes and heights, so fit decides it, not features.

Today the AP Products 015-217709 RV Radius Entrance Door - 26" x 72", Polar White costs $77.66 less at its best price.

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