Storage Optimization Algorithm

I'm hoping to get pointed in the right direction on finding or creating a tool that can optimize the storage of items based on their dimensions and the dimensions of storage spaces available. Luckily there is only 1 dimension to measure (Width), so the constraints and logic are fairly simple (no 3D stacking needed).

In very rough terms, there will be 2 tables with the following fields: Table 1: Storage Space

• Storage ID: Unique ID for the space
• Storage Width: Numerical value in metres
• Storage Capacity: Numerical how many items can be stored side by side - generally 1 or 2.

Table 2: Storage Items

• Item ID: Unique ID for the item being stored
• Item Width: Numerical value in Metres

The optimization exercise is to run through the list of Storage Items and assign them to a Storage Space while minimizing the unallocated storage width (i.e. pack these items as tight as it can) while respecting that a Storage Space may have a maximum capacity of 1 or 2 items.

I'm not the coding sort myself (I can work my way around programming logic but I'm not immersed in it and it will take me a good deal of time) so I'm wondering if anyone may be familiar with tools that could hand hold analyzing data sets in this way, or ready-made solutions that happen to tackle the optimization problem.

Thanks in advance!