Hollow with boards shalt thou make it: as it was shewed thee in the mount, so shall they make it. Hollow with boards - It seems to have been a kind of frame-work, and to have had nothing solid in the inside, and only covered with the grating at the top. This rendered it more light and portable.
Related Commentaries of Exodus 27:8
Exodus 27:8
8 Hollow with boards shalt thou make it: as it was shewed thee in the mount, so shall they make it.