Vendor booths are purchased in increments of 10x10. Vendors may purchase more space in increments of 10x10 by increasing the numerical amounts shown on the screen. purchasing two units would equate to a 10x20 and cost $500. Three units will be $750 and provide a space of 30x10. Fee is applied when paying by credit card. To avoid this fee, please select "pay by check" at checkout and mail check to Holy Trinity Academy.