# Truck Box > Truck Box is the DAT One broker emailer built for truck dispatchers, carriers, and owner-operators. It speeds up the DAT One load board (one.dat.com) across dry van, flatbed, and reefer loads, adding one-click broker emails with custom templates, RTS factoring credit checks, Google Maps routes, a deadhead-adjusted rate-per-mile calculator, miles and duplicate filters, keyboard navigation, a load-list refresh, and a dark/night mode. Works in Google Chrome and Opera, with secure Google sign-in. ## What it does - One-click broker email: a custom template auto-fills from the load's data on DAT and sends from your own Gmail. No copy-paste, no second tab. It only sends email you choose to send and never reads your inbox. - Custom email templates: build dynamic templates with {{placeholders}} (origin, destination, pickup date, equipment, length, weight, plus your name, MC and phone) that fill in automatically for each load. - RTS Credit Check: see a broker's RTS factoring credit rating and days-to-pay right on the load, before you call — for carriers who factor with RTS. - Inbuilt Google Maps route: open the load's route in one click as three stops — your truck location, the pickup, and the destination. - Rate calculator with deadhead RPM: price a load on the spot. Enter a rate to get the rate-per-mile (loaded and deadhead-adjusted), or flip the calculator to enter a target RPM and get the rate to ask the broker. - Load filter: dim or hide loads shorter than the distance you set, plus a duplicate-load filter that greys out repeated postings so you act on each load once. - Keyboard navigation: work the board without the mouse — W/S move between loads, A/D switch tabs, C copies, E sends the email, R refreshes. - Load refresh: refresh just the load list without reloading the whole DAT One page. - Night / dark mode: switch the entire DAT One load board to a dark theme. ## Who it is for - Truck dispatchers, carriers, and owner-operators sourcing freight on DAT One. - Works across equipment types: dry van, flatbed, and reefer loads. ## Compatibility - Browsers: Google Chrome and Opera (Chromium-based browsers). - Sign-in: secure Google sign-in. - Privacy: sends email only; never reads your inbox. ## Pricing - 7-day free trial, no credit card required. ## Links - Website: https://truckbox.app/ - Install (Chrome Web Store): https://chromewebstore.google.com/detail/truck-box/pbnichodfccghlpfonecdlcbjkipmmhd - Book a call: https://calendly.com/truckboxapp ## FAQ - What does Truck Box do? It adds one-click broker emailing with custom templates, RTS factoring credit checks, Google Maps routes, a deadhead-adjusted rate-per-mile calculator (works both ways), miles and duplicate load filters, keyboard navigation, a load-list refresh, and a dark/night mode to the DAT One load board so dispatchers book loads faster. - Who is it for? Truck dispatchers, carriers, and owner-operators on DAT One. - What load types does it support? Any DAT One load, including dry van, flatbed, and reefer. - Which browsers are supported? Google Chrome and Opera. - How much does it cost? It starts with a 7-day free trial, no credit card required. - Does it read my email? No. It only sends emails you explicitly choose to send from your own Gmail. - What is the RTS Credit Check? It shows a broker's RTS factoring credit rating and days-to-pay directly on the load, for carriers who factor with RTS, so you can vet who is posting before you call. - Can the rate calculator work backwards? Yes. Enter a rate to see the rate-per-mile (with deadhead), or switch it to enter a target RPM and get the rate to ask the broker. - Does it have a dark mode? Yes. Night mode switches the whole DAT One load board to a dark theme.