Home » DIY Speaker Cabinet Parts » Acoustic Foam/Ports1 1/2 Acoustic Eggcrate FoamPrice: USD $8.49 Out of StockDescriptionSpecifications 1 1/2 eggcrate foam. Sold by the foot, in 6ft long pieces. 6 square feet. 1ft x 6ft is what you get if you order 1ft. Virtually all Bill Fitzmaurice cabs will be covered by 2 running feet. Product ReviewsNo Reviews For This Product.