Orders above SAR 200 ship free when they go to a city listed in Inhouse’s coverage table, including Riyadh, Jeddah, Madinah, Makkah, Khobar, Dammam, Al-Ahsa, Hail, Hafr Al-Batin, Jubail and Yanbu. Outside that, anything weighing 20 kg or less costs SAR 29 to ship before VAT, while heavier items going beyond the covered cities are charged by weight, anywhere from SAR 200 to SAR 900.
Delivery times depend on your city and how big the item is, and they are counted in working days. The shipping page still shows the schedule written for the National Day period, which is over, and Inhouse has not posted updated times, so check the delivery date while ordering or ask customer service.
Source: Inhouse: shipping and delivery