Freight Forecasting: A Practical Guide for Truckload Shippers

Freight planning becomes difficult when transportation teams learn about shipments only after orders are ready. Production changes, customer promotions, and uneven order volumes can turn a manageable shipping schedule into a series of urgent requests.

A freight forecast helps shippers communicate expected transportation needs before every shipment is final. It does not have to predict demand perfectly. Its purpose is to give purchasing, operations, warehouse teams, and carriers a shared view of what may be coming—and what is already confirmed.

Here is how to build a practical forecast for full truckload dry van shipping.

Start With Shipping History, Not Just Sales Projections

Sales forecasts describe expected business activity. Freight forecasts translate that activity into transportation requirements. The two are related, but they are not interchangeable.

An increase in sales does not necessarily produce the same increase in truckloads. Order size, packaging, inventory availability, and customer delivery requirements all affect how freight moves.

Review past shipments by origin, destination, and shipping period. Look for:

• Recurring lanes and regular shipping patterns.
• Seasonal increases or decreases in volume.
• Frequent last-minute shipment requests.
• Differences between planned and actual truckloads.
• Orders that consistently require special handling or equipment considerations.

Use this history as a starting point, then adjust for known business changes. A new customer or warehouse may make last year's shipping pattern less useful.

Forecast by Lane and Equipment Need

A company-wide estimate of total shipments offers limited help when a carrier needs to understand where equipment will be needed.

Organize your forecast by lane: the shipping origin and destination. Include facility locations rather than relying only on broad regional descriptions when that information is available.

For each lane, capture:

• Expected shipping dates or windows.
• Estimated truckload volume.
• Commodity and packaging type.
• Estimated shipment weight and space requirements.
• Required equipment and facility restrictions.

Do not assume that every shipment with a similar pallet count will use the same amount of trailer space. Pallet dimensions, stackability, weight, and loading arrangements can change the transportation requirement.

For dry van freight, confirm that the product is suitable for an enclosed trailer without temperature control. If product requirements are uncertain, resolve them before requesting equipment.

Separate Confirmed Loads From Possible Demand

One of the most useful forecasting improvements is also one of the simplest: label how certain each shipment is.

A forecast might distinguish between:

• Confirmed: The order and shipping requirement are established.
• Expected: The shipment is likely, but some details remain open.
• Tentative: Demand depends on an event such as a promotion, production run, or customer decision.

These labels help prevent tentative demand from being mistaken for a firm transportation request. They also make it easier to explain changes without sending an entirely new plan every time an order shifts.

A forecast is not a load tender or a capacity guarantee. Confirm actual shipment acceptance and requirements separately with the carrier.

Connect the Forecast to Warehouse Readiness

Expected demand is only useful if the freight can be prepared for transportation.

Before sharing a shipping plan, check whether production, inventory, and warehouse operations support it. Finished goods may be available while packaging, labeling, or shipping documentation is still incomplete.

Ask your internal teams:

• Will the product be released and ready to load?
• Can warehouse staffing support the projected volume?
• Are loading equipment and dock access available?
• Are customer receiving requirements known?

Flag unresolved issues rather than presenting the load as ready. This gives transportation planners a more realistic picture and helps distinguish customer demand from freight that can actually move.

Share Changes Clearly With Carriers

A forecast should be a working planning tool, not a spreadsheet that is sent once and forgotten.

Agree on an update process with your carrier contacts. Use a consistent format so changes are easy to identify. When volume, dates, or destinations change, explain what changed and whether previously confirmed shipments are affected.

Highlight exceptions instead of making the recipient compare entire files. A short note identifying added loads, canceled demand, or revised shipping windows can make the update easier to use.

Early communication gives carriers more information for planning. It does not guarantee available equipment, but it can support more informed conversations about transportation options.

Review Results and Improve the Next Forecast

Compare forecasted shipments with actual activity. Look beyond whether the total load count was close: a forecast can match overall volume while missing the lanes or dates that mattered most.

Track recurring differences and their causes. Were orders delayed by production? Did customers change destinations? Was tentative demand treated as confirmed?

Use those findings to improve the next planning cycle. The goal is a dependable process that makes uncertainty visible—not a forecast that never changes.

Double Diamond Transport is a San Antonio, Texas-based full truckload and dry van freight carrier serving the United States. Ready to discuss an upcoming shipment? Visit the Contact page on the Double Diamond Transport website to request a freight quote.