So i want to make a custom fiber glass sub enclosure in my trunk. does anyone know the cubic volume of the spare tire well? or how i could find out?

 

Just approximate it. YOu can take the spare part as a cylinder (measure the diameter then Vol=(pi*D^2)/4*Depth) and if you are going to fill in the part with the jack too ( I recall that as being a rectangle. So just base*height*depth and you will have the total volume when you add those up.

 

thanks