As part of our upcoming 3-in-1 garden room plan sets, you will get a layered model of the each specification. These are the real world scale models that we use to produce the dimensioned plans.
By providing you with the layered model, you will be able to go into the model and check any measurements. You can even do this on site if you use the SketchUp Viewer app on your phone.
Also if you want to modify the design for instance to include an extra window, you could go into the model and adjust the framework layout. We have a series of short tutorials on how to do this with the models in the works.
So, while we are putting the final touches to these plans, we thought we would share an animation of the plans for the build-up using an insulated wall panel: