Today I bought a sofa cushion and a bay window cushion, which occasionally slides, please ask what f

There is nothing expensive or inexpensive, because what is expensive is not the cost of materials but the cost of labor. If you think it's a good deal, it's reasonable.

Measure the length and width with a steel tape measure, use the whole for the couch, and use a single cushion for the single sofa.

Didn't you press the car yourself on the way back? Is the driver a friend to help, or is it a rented car, and there is a statement in advance to ensure that everything is delivered? This kind of thing can only be handled through negotiation.

Personally, I think that the sofa cushion is generally spread on the part of the sofa where you sit. >>>More

The sofa cushion should not be too heavy, and if it is divided into parts, it should be communicated with the buyer when it should be shipped.