Hang it before you believe me.
Five rooms — or a photograph of the wall you are standing in front of right now. Tell it how wide that wall truly is and every size below is drawn honestly against it. Each room has been measured, so a piece only ever lands on wall that is genuinely clear; when it will not fit, it says so rather than sprawling across a window. Then take it in your hand and move it to where it would live. Double-click to put it back. The whole collection sits in the strip under the room, so you can try as many as you like without setting any of it up twice.
Press any of them to hang it here. The room, the wall width, the material and the size all stay exactly where you set them. Arrow keys work too.
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The strip under the room holds all 235 of them, and nothing you have set up is lost by trying another one. The collection page adds colour and budget to the same filters.
Give it the true width of your wall and every size below is drawn to real scale against it. Guessing here is how people end up with a piece that looks lonely.