Variable spacer system of insulated concrete forms

A method of construction using insulated concrete forms comprising:

• placing two panels in parallel, each panel comprising at least one cavity beginning at the top of the panel and ending prior to the bottom of the panel;
• and
• sliding at least one spacer between the two panels, the at least one spacer coupling the two panels by entering the cavities at the tops of the panels and resting at the ends of the cavities, the cavities also able to accept at least one other spacer having the same dimensions as the at least one spacer except a different thickness, wherein the at least one spacer, at least one other spacer, and at least two panels a pre-configured with a fastening hole, the fastening hole in the center of the at least one spacer and at least one other spacer, and the fastening hole in each panel configured to align with the fastening hole in the at least one spacer and the at least one other spacer when resting at the ends of the cavities;
• pouring concrete between the two panels on and around the at least one spacer;
• fastening the at least one spacer between the two panels using a fastening assembly, thus forming a block, wherein the fastening assembly comprises two tie wraps and two washers, the first tie wrap inserted through the fastening hole and washers, and the second tie wrap securing the first tie wrap;
• decoupling the washers from the fastening assembly;
• and
• reusing the washers in fastening assemblies for other panels.

A variable spacer system of insulated concrete forms comprising:

• panels, each panel comprising cavities beginning at the top of the panel and ending prior to the bottom of the panel;
• spacers able to couple the panels, when parallel, by entering the cavities at the tops of the panels and resting at the ends of the cavities, wherein the spacers and panels are pre-configured with a fastening hole, the fastening hole in the center of the spacers, and the fastening hole in each panel configured to align with the fastening hole in the spacers when resting at the ends of the cavities;
• and
• fastening assemblies comprising two tie wraps and two washers, the first tie wrap to be inserted through the fastening hole and washers, and the second tie wrap to secure the first tie wrap;
• wherein the washers may be decoupled and reused in fastening assemblies for other panels after pouring concrete between the panels;
• wherein the cavities also accept multiple other spacers having the same dimensions as the at least one spacer except different thicknesses;
• and
• wherein identical panels create walls of different thicknesses proportional to the thicknesses of the spacers used in the panels' cavities.